Put one digit from 1–9 in each square of this Sudoku so that the following three conditions are met: 1) each row, column, and 3-x-3 box (as marked by shading in the grid) contains the digits 1–9 exactly one time; 2) no digit is repeated within any of the areas marked off by heavy black lines; and 3) the sums of the digits in each area marked off by heavy black lines total the little number given in each of those areas. For example, the digits in the upper-leftmost square in the grid and the square directly beneath it will add up to 9. It’s psychotic!